It seems that Software Controller for PC has a latest version of 4.2.1. It also appears that the software download link on this website only links to the previous version 4.2. As a result when downloading the software it installs, "checks controller" then states that it requires an update, please download the latest version from the sonos website.
Obviously I cannot do so, because at this stage there is no link that I can find on here.
Does anyone have a direct link to the latest download? Thanks.
P.s. No I can't simply click on update in the software as Sonos in their wisdom will not allow me to run the "out of date" software to the point where I can click on an update button.